Saturday, September 21, 2013

The End Of Earth

A new study says Earth will be uninhabitable in 1.75 billion years.  The Sun is growing bigger and hotter, it says, and will eventually boil away Earth's water reserves.

At that far future time, the study says Mars will be habitable.  Of course, a starfaring civilization around before that end time could also intervene in the natural run of things to preserve its home world.

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